The 51-year-old Notley, a former labour lawyer, led her party to a 54-seat majority government earlier this month, ending the 44-year Progressive Conservative dynasty in Alberta.
She was sworn in as the province's 17th premier on Sunday, along with the other 11 men and women she appointed to her cabinet, the smallest in decades.
As Finance Minister Joe Ceci arrived at the McDougall Centre for the meeting, he reiterated the new government's pledge to repeal Alberta's flat tax and replace it with a progressive model.
"That's gonna change with this government. And you know, every province and territory across the country has a progressive income tax and we haven't," he said.
"That's meant that some things haven't been able to take place in this province. And I want to be part of the group that changes that."